LOCATION SATURN OR
Established Series
Rev. WRP/JGM/KMS
01/2017
SATURN SERIES
Landscape--western Cascade Mountains
Landform--terraces, drainageways
Slope--0 to 5 percent
Parent material--poorly sorted alluvium derived dominantly from basic igneous rock
Mean annual precipitation--1800 mm
Mean annual air temperature--about 10 degrees C
Depth class--very deep
Drainage class--well drained
Soil moisture regime--udic
Soil temperature regime--mesic
Soil temperature subclass--typic
TAXONOMIC CLASS: Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Fluventic Humudepts
TYPICAL PEDON: Saturn clay loam, forested
Oi--0 to 3 cm; slightly decomposed plant material consisting of grass, ferns, leaves, and twigs
A--3 to 18 cm; clay loam, brown (10YR 5/3) dry, dark brown (7.5YR 3/2) moist; weak medium subangular blocky structure parting to moderate fine granular; hard, friable, slightly sticky and slightly plastic; many fine roots; many irregular pores; 10 percent gravel; moderately acid (pH 6.0); clear smooth boundary
AB--18 to 28 cm; clay loam, brown (10YR 5/3) dry, dark brown (7.5YR 3/2) moist; moderate medium subangular blocky structure; hard, friable, moderately sticky and moderately plastic; common fine roots; many fine and very fine tubular and irregular pores; 5 percent gravel; moderately acid (pH 5.8); gradual smooth boundary
Bw1--28 to 61 cm; clay loam, brown (7.5YR 5/4) dry, brown (7.5YR 4/4) moist; weak medium and coarse subangular blocky structure; hard, friable, moderately sticky and moderately plastic; few fine roots; common very fine tubular pores and many fine irregular pores; 5 percent gravel; very strongly acid (pH 4.8); clear wavy boundary
Bw2--61 to 84 cm; gravelly loam, brown (7.5YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; massive; hard, friable, slightly sticky and slightly plastic; few fine roots; few very fine tubular pores; 20 percent gravel; very strongly acid (pH 4.6); abrupt wavy boundary
2C1--84 to 99 cm; extremely gravelly loamy sand, yellowish brown (10YR 5/4) dry, dark brown (10YR 3/3) moist; massive; loose, friable, nonsticky and nonplastic; few fine roots; common fine to coarse irregular pores; 70 percent gravel and cobbles; interstices larger than 1 mm not all filled; very strongly acid (pH 4.6); abrupt wavy boundary
2C2--99 to 155 cm; extremely gravelly loamy sand, variegated; single grain; loose, nonsticky and nonplastic; interstices larger than 1 mm not all filled; 65 percent gravel and cobbles; very strongly acid (pH 4.6)
TYPE LOCATION: Lane County, Oregon, on the side of a borrow pit south of Big River Road, at the junction of the rock quarry road; in the SW1/4NW1/4 of section 12, T. 23 S., R. 3 W.; latitude 43.5852127, longitude -123.0045697, datum WGS 84 (coordinates estimated from PLSS details)
RANGE IN CHARACTERISTICS:
Dry days--less than 45 consecutive days following summer solstice
Mean annual soil temperature--8 to 11 degrees C
Thickness of umbric epipedon--25 to 50 cm (below mineral soil surface)
Depth to lithologic discontinuity--50 to 100 cm below mineral soil surface
A and AB horizons
*Hue--10YR, 7.5YR
*Value--2 or 3 moist, 4 or 5 dry
*Chroma--2 or 3 moist or dry
*Clay content--27 to 35 percent
*Total fragment content--0 to 15 percent
*Gravel content--0 to 15 percent
*Cobble content--0 to 5 percent
*Reaction--5.1 to 6.0
*Thickness--25 to 50 cm
Bw horizon
*Hue--10YR, 7.5YR
*Value--3 or 4 moist, 5 or 6 dry
*Chroma--4 to 6 moist or dry
*Fine-earth texture--clay loam, loam
*Clay content--25 to 35 percent
*Total fragment content--5 to 30 percent
*Gravel content--5 to 30 percent
*Cobble content--0 to 10 percent
*Reaction--4.5 to 5.5
*Thickness--25 to 50 cm
2C horizon
*Fine-earth texture--sand, loamy sand
*Clay content--0 to 5 percent
*Sand content--75 to 95 percent
*Total fragment content--50 to 75 percent
*Gravel content--40 to 60 percent
*Cobble content--10 to 25 percent
*Reaction--4.5 to 5.5
COMPETING SERIES: None
GEOGRAPHIC SETTING:
Elevation--200 to 500 m
Climate--cool, dry summers; cool, moist winters
Mean annual precipitation--1500 to 2050 mm
Mean annual air temperature--8 to 12 degrees C
Frost-free period--120 to 220 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Haflinger--less than 15 percent clay and more than 35 percent fragments throughout; on stream terraces of wider valleys
Jimbo--no coarse fragments; volcanic glass; no contrasting particle-size class; on higher stream terraces and fan aprons
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--well drained
Saturation during normal years--apparent high water table greater than 100 cm below mineral soil surface in December through March
Flooding--rare
Ponding--none
Saturated hydraulic conductivity (Ksat)--moderately high over very high
USE AND VEGETATION:
Use--pasture, wildlife habitat, recreation
Potential natural vegetation--Douglas-fir, western hemlock, grand fir, bigleaf maple, red alder, dogwood, hazel, vine maple, trailing blackberry, western swordfern
DISTRIBUTION AND EXTENT: Along streams of western Cascade Mountains leading into the Willamette Valley; MLRA 3; small extent
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Lane County Area, Oregon; 1981
REMARKS:
Diagnostic horizons and other features in this pedon
*Umbric epipedon--zone from 3 to 28 cm
*Cambic horizon--zone from 28 to 84 cm
*Depth to lithologic discontinuity--84 cm
*Strongly contrasting particle-size class--84 cm
*Particle-size control section--zone from 28 to 103 cm
*Organic matter content--irregular decrease as depth increases
ADDITIONAL DATA:
Characterization data--pedon number S77-OR-39-4(1-6) from Oregon State University (unpublished)
Type location user site ID: 1981OR039028
National Cooperative Soil Survey
U.S.A.